25003000280 has 16 divisors (see below), whose sum is σ = 56256750720. Its totient is φ = 10001200096.

The previous prime is 25003000273. The next prime is 25003000313. The reversal of 25003000280 is 8200030052.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 312537464 + ... + 312537543.

It is an arithmetic number, because the mean of its divisors is an integer number (3516046920).

Almost surely, 2^25003000280 is an apocalyptic number.

25003000280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25003000280 is an abundant number, since it is smaller than the sum of its proper divisors (31253750440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25003000280 is a wasteful number, since it uses less digits than its factorization.

25003000280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 625075018 (or 625075014 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The spelling of 25003000280 in words is "twenty-five billion, three million, two hundred eighty", and thus it is an aban number.